11.30.2008

Citing the epidemic involving severe acute respiratory syndrome, or SARS, in recent years, he said technology would have helped health officials watch the movement of infected people as it happened, providing an opportunity to limit the spread of the disease.

“If I could have looked at the cellphone records, it could have been stopped that morning rather than a couple of weeks later,” he said. “I’m sorry, that trumps minute concerns about privacy.”

“The new information tools symbolized by the Internet are radically changing the possibility of how we can organize large-scale human efforts,” said Thomas W. Malone, director of the M.I.T. Center for Collective Intelligence.

“For most of human history, people have lived in small tribes where everything they did was known by everyone they knew,” Dr. Malone said. “In some sense we’re becoming a global village. Privacy may turn out to have become an anomaly.”